Remove unused typedef in polynomialsolver test.
Remove unused typedef in polynomialsolver test.

--HG--
extra : source : 57fca8e28fdd46fedab3c94e55f95e1cb957a268

mjbshaw/Eigen,madlib/eigen_backup,rotorliu/eigen,madlib/eigen_backup,rotorliu/eigen,mjbshaw/Eigen,rotorliu/eigen,mjbshaw/Eigen,rotorliu/eigen,madlib/eigen_backup,mjbshaw/Eigen,madlib/eigen_backup